Decide whether to leave or remove a contribution
A shared viewing list has at least two kinds of state: who can contribute, and which videos are already in the list. YouTube says leaving a collaborative playlist removes your collaborator status and ability to add new videos, but the videos you previously added remain. If the goal is to remove a particular contribution, do not assume leaving the list accomplishes that separate action.
Read the owner and contributor permissions
YouTube says a contributor and the playlist owner can remove that contributor’s added videos. The owner can turn collaboration off, which removes all collaborators. Inviting collaborators also requires a shareable public or unlisted playlist. Those scopes are important: viewing a shared list is different from permission to edit it, and ending one person’s participation is different from ending collaboration for everyone.
Use a clear handoff after a group session
For example, after a family collects tutorials for a television setup, a contributor may want to stop receiving the list in their Library while keeping useful videos available to others. Leaving can match that goal. If an accidental addition should be removed, identify it before leaving and use the supported removal control, or ask the owner. Review the list’s visibility before sharing its link more widely. Keep personal account information and private video links out of a public support example. This guide describes the documented permission changes without sending invitations or editing a playlist.
Questions, answered
Will leaving automatically delete my earlier additions?
YouTube says contributed videos stay in the playlist after a collaborator leaves.